GNU bug report logs - #74964
31.0.50 master; .dir-locals.el vars does not work with changing major mode

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Package: emacs;

Reported by: Yikai Zhao <yikai <at> z1k.dev>

Date: Thu, 19 Dec 2024 07:55:02 UTC

Severity: normal

Found in version 31.0.50

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

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Message #8 received at 74964 <at> debbugs.gnu.org (full text, mbox):

From: Robert Pluim <rpluim <at> gmail.com>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Yikai Zhao <yikai <at> z1k.dev>, 74964 <at> debbugs.gnu.org
Subject: Re: bug#74964: 31.0.50 master; .dir-locals.el vars does not work
 with changing major mode
Date: Fri, 20 Dec 2024 17:20:10 +0100

>>>>> On Thu, 19 Dec 2024 15:53:58 +0800, Yikai Zhao <yikai <at> z1k.dev> said:

    Yikai> How to reproduce:
    Yikai> With following content in /tmp/test/.dir-locals.el:

    Yikai> ((nil . ((my/test . "test")))
    Yikai>  (c-mode . ((eval . (when (eq major-mode 'c-mode)
    Yikai>                       (c++-mode))))))
    Yikai> ;; I use this code because I want my projects' .h files always opened
    Yikai> in c++ mode

    Yikai> Then open a new file test.c in the folder.

    Yikai> Expected behavior: my/test variable is set.
    Yikai> Actual behavior: my/test variable is not set.

    Yikai> Emacs 29 and 30 does give me the expected result.

Stefan, reverting f713258416f (Bug#74349) fixes this

Robert
--
This bug report was last modified 122 days ago.

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